You may have noticed that when Neil shows Niche of the week in the live calls, he always goes to page 3, to see a "more accurate" number of that niche. So why does he, you ask.
In short, they can not really display everything you could be looking for based on a couple of words, so they give you many results of items. When clicking page 3, it now shows more results that could be revelant with a better picture of how many products there are.
To hear the full view on this, watch this small portion of a live call and Neil's explanation below.